[TechAssist] NEC DT-4861S Projection TV goes into shutdown.
- From: kevinstv <kevinstv@xxxxxxx>
- To: TECH-ASSIST <techassist@xxxxxxxxxxxxx>
- Date: Sun, 06 Oct 2002 18:43:15 -0700
NEC DT-4861S Projection TV goes into shutdown.
Hi fellow techs,
Working on this projection TV. After much head scratching and testing, have
discovered that this set is going into shutdown because of excessive HV.
Measured HV first coming out of flyback, but set shut down too quickly to
measure. Then days later (today, to be exact) measured HV coming out of HV
block or splitter and found it to be 35 KV, before it went into shutdown. HV
should be 31 KV from service manual. Is it possible for HV block to produce
more voltage than going in? Or is my flyback producing the excessive HV? B+
is good. Is there any method to test the HV splitter out of circuit?
Thankyou.
Kevin Wilks
Kevin's TV and Video Repair
Penticton BC Canada
kevinstv@xxxxxxx
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